I-Motion 9 Disc Brake

Information from: http://www.sram.com/sram/trekking-comfort/products/i-motion-9-disc-brake.

Getting fit on your bike has never been so easy. The disc brake version of i-MOTION 9 offer almost the same transmission range as a racing bike, but in a nearly maintenance-free unit with intuitive operation. Disc brake performance is optimum under all conditions. You will almost want to cry because you didn’t have it before.

Specifications

Technology: Shifting servo, Easy-Click connector, Shiftable under load, Shifting while standing, Smooth transition

Transition: 340%

Gears: 9

Weight: 1960g